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Free_Kalibri [48]
3 years ago
12

There are 20 people in a room, If they all shake each other's hands once and only once, HOW MANY handshakes are there altogether

?

Mathematics
2 answers:
vazorg [7]3 years ago
7 0
I thinkkkkk40 I think
Ann [662]3 years ago
5 0

Answer:380 Shakes

Step-by-step explanation:

first you need to figure out how many people are shaking the persons hand sou you do 20 x 16 which equals 380

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The County Fair has to 2 ticket options.Option 1 has an entry fee of $5 and charges $0.65 per ride per ride. Option 2 has an ent
Ugo [173]

For 25 tickets total cost of option one and option two to be the same.

Step-by-step explanation:

Let us assume the total number of rides = m

for which BOTH options cost same.

Case: 1

The cost of entry fee  = $5

The cost per ride = $0.65

So, the cost of m rides  = m x ( Cost of 1 ride )  

=  m x ($0.65 ) = 0.65 m

Cost of purchasing m tickets in first ride  = Entry Fee + Per ticket cost

                                                                       = 5 +0.65 m    ..... (1)

Case: 2

The cost of entry fee  = $10

The cost per ride = $0.45

So, the cost of m rides  = m x ( Cost of 1 ride )  

=  m x ($0.45 ) = 0.45 m

Cost of purchasing m tickets in second ride  = Entry Fee + Per ticket cost

                                                                       = 10 +0.45 m    ..... (2)

Now, equating (1) and (2), we get:

5 +0.65 m = 10 +0.45 m

or, 0.20 m = 5

or, m = 5/0.20  = 25

or, m = 25

Hence, for 25 tickets total cost of option one and option two to be the same.

5 0
3 years ago
Help plz this is multiple choice so just choose the answer u think is correct.
babymother [125]

the answer is 34.83 I believe

5 0
2 years ago
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